namespace CMSMicroservice.Application.Common.Authorization;

/// <summary>
/// ثوابت نام مجوزها — دسته‌بندی شده بر اساس حوزه
/// </summary>
public static class PermissionNames
{
    // Dashboard
    public const string DashboardView = "dashboard.view";

    // Orders
    public const string OrdersView = "orders.view";
    public const string OrdersCreate = "orders.create";
    public const string OrdersUpdate = "orders.update";
    public const string OrdersDelete = "orders.delete";
    public const string OrdersCancel = "orders.cancel";
    public const string OrdersApprove = "orders.approve";

    // Products
    public const string ProductsView = "products.view";
    public const string ProductsCreate = "products.create";
    public const string ProductsUpdate = "products.update";
    public const string ProductsDelete = "products.delete";

    // Users
    public const string UsersView = "users.view";
    public const string UsersUpdate = "users.update";
    public const string UsersDelete = "users.delete";

    // Commission
    public const string CommissionView = "commission.view";
    public const string CommissionApproveWithdrawal = "commission.approve_withdrawal";

    // Public Messages
    public const string PublicMessagesView = "publicmessages.view";
    public const string PublicMessagesCreate = "publicmessages.create";
    public const string PublicMessagesUpdate = "publicmessages.update";
    public const string PublicMessagesPublish = "publicmessages.publish";

    // Manual Payments
    public const string ManualPaymentsView = "manualpayments.view";
    public const string ManualPaymentsCreate = "manualpayments.create";
    public const string ManualPaymentsApprove = "manualpayments.approve";

    // Settings
    public const string SettingsView = "settings.view";
    public const string SettingsUpdate = "settings.update";
    public const string SettingsDelete = "settings.delete";
    public const string SettingsManageConfiguration = "settings.manage_configuration";
    public const string SettingsManageVat = "settings.manage_vat";

    // Reports
    public const string ReportsView = "reports.view";
}

/// <summary>
/// نام نقش‌ها
/// </summary>
public static class RoleNames
{
    public const string SuperAdmin = "Administrator";
    public const string Admin = "Admin";
    public const string Inspector = "Inspector";
}

/// <summary>
/// تنظیمات نقش→مجوز — ماتریس دسترسی
/// </summary>
public static class RolePermissionConfig
{
    private static readonly Dictionary<string, HashSet<string>> RolePermissions = new(StringComparer.OrdinalIgnoreCase)
    {
        [RoleNames.SuperAdmin] = new(StringComparer.OrdinalIgnoreCase) { "*" }, // Full access

        [RoleNames.Admin] = new(StringComparer.OrdinalIgnoreCase)
        {
            PermissionNames.DashboardView,
            PermissionNames.OrdersView,
            PermissionNames.OrdersCreate,
            PermissionNames.OrdersUpdate,
            PermissionNames.OrdersCancel,
            PermissionNames.ProductsView,
            PermissionNames.ProductsCreate,
            PermissionNames.ProductsUpdate,
            PermissionNames.ProductsDelete,
            PermissionNames.UsersView,
            PermissionNames.UsersUpdate,
            PermissionNames.CommissionView,
            PermissionNames.CommissionApproveWithdrawal,
            PermissionNames.PublicMessagesView,
            PermissionNames.PublicMessagesCreate,
            PermissionNames.PublicMessagesUpdate,
            PermissionNames.PublicMessagesPublish,
            PermissionNames.ManualPaymentsView,
            PermissionNames.ManualPaymentsCreate,
            PermissionNames.ReportsView
        },

        [RoleNames.Inspector] = new(StringComparer.OrdinalIgnoreCase)
        {
            PermissionNames.DashboardView,
            PermissionNames.OrdersView,
            PermissionNames.UsersView,
            PermissionNames.CommissionView,
            PermissionNames.PublicMessagesView,
            PermissionNames.ReportsView
        }
    };

    /// <summary>
    /// بررسی اینکه آیا نقش مشخصی مجوز خاصی دارد
    /// </summary>
    public static bool HasPermission(string role, string permission)
    {
        if (string.IsNullOrWhiteSpace(role) || string.IsNullOrWhiteSpace(permission))
            return false;

        if (!RolePermissions.TryGetValue(role, out var permissions))
            return false;

        // Wildcard: SuperAdmin has full access
        if (permissions.Contains("*"))
            return true;

        return permissions.Contains(permission);
    }
}